Short Lead Time for Chery Envy Steering Gear - QR523 TRANSMISSION CASING,TRANSMISSION for CHERY TIGGO T11 – Qingzhi

2 QR523-1701301 COVER BEARING
3 QR523-1701703 BEARING FRT and R.
4 QR523-1701704AA GASKET – ADJUST
5 QR523-1701203 SEAL OIL-DIFF.
6 QR523-1701109 BAFFLE,OIL
7 QR523-1701102 PLUG MAGNET
8 QR523-1701103 PLAIN WASHER MAGNET PLUG
9 Q5211020 POSITION PIN
10 QR523-1701201 CASING CLUTCH
11 QR523-3802505 BUSH – ODOMETER
12 Q1840612 BOLT
13 QR523-1701202 SHOES,RELEASE BEARING
14 QR523-1602522 SEAT,BAL-RELEASE FORK
15 QR523-1702331 BEARING SHIFT ASSY
16 QR523-1701105 PLAIN WASHER PLUG
17 QR523-1701206 SEAL OIL-INPUT SHAFT
18 QR523-1701502 BEARING OUTPUT SHAFT-FRT
19 QR523-1701104 PLUG
20 QR523-1701101 CASE TMISSION
21 QR523-1701220 MAGNET SET
22 QR523-1701302 PIPE – GUIDE
23 QR523-1701204 BUSH – SEAL
24 QR523-1701111 STUD
25 QR523-1700010BA TRANSMISSION ASSY – QR523
26 QR518-1701103 DEVICE – SHIFT STEEL BALL POSITION
27 QR523-1701403AB RING – SNAP
28 QR523-1701501BA SHAFT – OUTPUT
29 QR523-1701508AB RING – SNAP
30 QR523-1701700BA DRIVING and DIFF
31 QR523-1701707BA GEAR – MAIN REDUCER DOORIVEN
32 QR523-1701719AB GASKET – ADJUST
33 QR523-1701719AE ADJUSTMENT WASHER
34 QR523-1702410 PLUG – VENT
35 QR523-1702420BA GEAR SHIFT ARM
36 T11-1601020BA COVER ASSY – CLUTCH
37 T11-1601030BA DISK ASSY – CLUTCH DOORIVEN
38 T11-1601030DA DISK ASSY – CLUTCH DOORIVEN
39 T11-1502150 ROD ASSY – OIL LEVER GAUGE
40 T11-1503020 PIPE – INLET
41 T11-1503040 PIPE ASSY – RETURN
42 SMN132443 DISC CLUTCH
43 SMR534354 CASING SET CLUTCH

Transmission housing is a load-bearing part, which is generally made of die-casting aluminum alloy through special die-casting, with irregular and complex shape.

 The gearbox shell was mainly made of gray cast iron in the early stage, which has the advantages of easy forming, good shock absorption and low cost. With the improvement of users’ requirements for vehicle driving comfort and the maturity of lightweight technology, the gearbox shell on the car is replaced by aluminum alloy. The gearbox shell is mainly made of gray cast iron and aluminum alloy.

The transmission housing is a housing structure used to install the transmission mechanism and its accessories. In order to reduce the wear and power loss of parts caused by internal friction, lubricating oil must be injected into the shell and the working surfaces of gear pairs, shafts, bearings and other parts must be lubricated by splash lubrication. Therefore, there is an oil filler on one side of the shell, an oil drain plug at the bottom, and the oil level height is controlled by the position of the oil filler.

An oil seal assembly is installed in the rear bearing cover of the transmission. Install sealing gaskets at the joint surfaces of each bearing cover, rear cover, upper cover, front and rear housing, and apply sealant to prevent oil leakage. In order to prevent the leakage of lubricating oil caused by the increase of oil temperature and pressure during the operation of the transmission, a vent plug is installed on the transmission mechanism seat and the rear bearing cover of the transmission.

The main function of the gearbox shell is to support the transmission shafts, ensure the center distance and parallelism between the shafts, and ensure the correct installation of the gearbox shell parts and other connected parts. The processing quality of the gearbox shell directly affects the assembly accuracy and operation accuracy of the transmission assembly, as well as the working accuracy and service life of the vehicle, Therefore, the quality requirements are high.

Processing difficulties of gearbox housing:

1. There are many processing contents, and the machine tools and cutting tools need to be changed frequently.

2. The requirement of machining accuracy is high. It is difficult to guarantee the machining quality by using ordinary machine tools, and the process flow is long, the turnover times are many, and the production efficiency is difficult to improve.

 3. The shape is complex, and most of them are thin-walled shells, with poor workpiece stiffness, which is difficult to clamp.